10. (10) The power (in milliwatts) returned to a radar from a certain class of aircraft has the probability density function fp(p) = (11) e-p/10u (p) Suppose a given aircraft belongs to the class but is known to not produce a power larger than 15mW. a. Determine the probability density function of P conditional on P < 15 mW. b. Determine the conditional meal of P.